Louisiana Revised Statutes Tit. 50, § 221. Fixing parish boundary

Whenever the governing authority of any parish desires to ascertain and fix the boundary line of any adjoining parish, it shall pass an ordinance to that effect fixing a time and place for starting the running of the boundary. It shall then serve the presiding officer of the governing authority of the adjoining parish with a copy of the ordinance and with notice, at least six months in advance, of the time and place of starting the running of the boundary.

The surveyors appointed for that purpose, or, if there were none specifically appointed, the parish surveyors of both parishes shall, at the time fixed, proceed to the running and marking of the boundary line. If the surveyor of either parish fails to attend at the time and place fixed, the other surveyor shall wait two days and if the first does not arrive within that time shall proceed to the running and marking of the boundary line.